Ok, we seem to have different approaches... :) I understand your position, I just think other (deterministic) solutions are safer (meaning: less likely to cause trouble). I know it is easy to be smart now that we know what happened, but I think the post nicely shows some of the dangers when using nondeterministic ids.

I am quite sure it would be easier to find cause for duplicates if you were not using random. Anyway, at least you caught a nice bug. :)